The Multiquip 13012ZJ1841 is a genuine OEM Piston Ring Set OS 0.50 designed for GA9.7HE, AR13HA/HAR, AR13HC, and AR13H series equipment. As a direct Multiquip OEM part, 13012ZJ1841 is manufactured to the exact tolerances required for proper compression seal and ring land fit in the original engine bore. This oversized 0.50mm set is intended for engines that have been re-bored to restore worn cylinder walls, making it a critical component in a proper engine rebuild. Confirm your engine's bore specification before ordering to ensure this oversize ring set matches your application.
Key Features
- OEM-Grade Ring Tolerances — Manufactured to exact compression and oil control ring specifications, ensuring correct radial tension and seating against the cylinder wall for a consistent combustion seal.
- Oversize 0.50mm Specification — Sized for engines re-bored 0.50mm over standard, this set installs directly into a properly reconditioned bore without additional machining of the rings themselves.
- Confirmed Fitment — Compatible with GA9.7HE gasoline-powered generators and AR13H series asphalt ride-on rollers, including AR13HA/HAR and AR13HC models.
- Restores Compression and Oil Control — Worn or broken piston rings allow combustion gases to bypass the piston, leading to power loss, increased oil consumption, and rough running; a correct ring set returns the engine to proper operating condition.
- Genuine Multiquip Part — Sourced directly from Multiquip, part number 13012ZJ1841 carries full OEM traceability, so you can be confident the rings match the engine's original design intent.
Piston rings seal the gap between the piston and the cylinder wall, performing two essential jobs: containing combustion pressure above the piston to drive power output, and scraping excess oil back down the cylinder to prevent it from burning in the combustion chamber. A ring set that has worn, lost tension, or broken allows blow-by gases to escape into the crankcase, which shows up as lost power, increased oil use, and excessive exhaust smoke. When an engine cylinder is re-bored to remove wear and scoring, a standard-size ring set will no longer seal correctly — an oversize set like the 13012ZJ1841 OS 0.50 is required to match the enlarged bore and restore proper compression and oil control.
Part Details
| Part Number | 13012ZJ1841 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Piston Ring Set OS 0.50 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Gasoline Powered Generators | GA9.7HE |
| Rollers | AR13HA/HAR |
| Rollers | AR13HC |
| Rollers | AR13H |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
